I don't know anything about the VAX-D treatment, however I just had the ADR surgery done in October. Mine was the PRODISC , and this too should be approved by the FDA in 2004 as well. Since I had the surgery my pain levels have improved significantly. The recovery time from this type of surgery varies from people to people, as each of us heal differently. I haven't been able to return to work yet, doctors orders since my job is a 40 hour a week sit down job, and this will add to much pressure for the disc, in this early stage. I did notice that I wasn't having major pain when I started PT last week, and before I had surgery when I left PT I would be in more pain then ever. If you would like more on the ADR surgery let me know, I will be happy to go over this with you.
I hope you have a great weekend